TSB: BUICK 3500HD, BLAZER, BOLT EV, BRIGHTDROP EV600, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, HUMMER EV, LYRIQ, MALIBU, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON (2024)

Bulletin 05-06-04-022U — March 28, 2023

Bulletin Details

Bulletin ID05-06-04-022U
ManufacturerBUICK
Models3500HD, BLAZER, BOLT EV, BRIGHTDROP EV600, CAMARO, CANYON, COLORADO, CT4, CT5, ENCLAVE, ENCORE GX, ENVISION, ENVISTA, EQUINOX, EQUINOX EV, ESCALADE, HUMMER EV, LYRIQ, MALIBU, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV, SUBURBAN, TAHOE, TERRAIN, TRAILBLAZER, TRAVERSE, TRAX, XT4, XT5, XT6, YUKON
Model Years2024
Date IssuedMarch 28, 2023
Date Added to NHTSAApril 13, 2023
ComponentFUEL SYSTEM, GASOLINE
Vehicles Affected123 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.

Affected Vehicles

MakeModelYearComponent
CHEVROLET 3500HD 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET 3500HD 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET 3500HD 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC 3500HD 2024 070000 FUEL SYSTEM, GASOLINE
GMC 3500HD 2024 080000 FUEL SYSTEM, DIESEL
GMC 3500HD 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET BLAZER 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET BLAZER 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET BLAZER 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET BOLT EV 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET BOLT EV 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET BOLT EV 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC BRIGHTDROP EV600 2024 070000 FUEL SYSTEM, GASOLINE
GMC BRIGHTDROP EV600 2024 080000 FUEL SYSTEM, DIESEL
GMC BRIGHTDROP EV600 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET CAMARO 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET CAMARO 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET CAMARO 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC CANYON 2024 070000 FUEL SYSTEM, GASOLINE
GMC CANYON 2024 080000 FUEL SYSTEM, DIESEL
GMC CANYON 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET COLORADO 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET COLORADO 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET COLORADO 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC CT4 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC CT4 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC CT4 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC CT5 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC CT5 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC CT5 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
BUICK ENCLAVE 2024 070000 FUEL SYSTEM, GASOLINE
BUICK ENCLAVE 2024 080000 FUEL SYSTEM, DIESEL
BUICK ENCLAVE 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
BUICK ENCORE GX 2024 070000 FUEL SYSTEM, GASOLINE
BUICK ENCORE GX 2024 080000 FUEL SYSTEM, DIESEL
BUICK ENCORE GX 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
BUICK ENVISION 2024 070000 FUEL SYSTEM, GASOLINE
BUICK ENVISION 2024 080000 FUEL SYSTEM, DIESEL
BUICK ENVISION 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
BUICK ENVISTA 2024 070000 FUEL SYSTEM, GASOLINE
BUICK ENVISTA 2024 080000 FUEL SYSTEM, DIESEL
BUICK ENVISTA 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET EQUINOX 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET EQUINOX 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET EQUINOX 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET EQUINOX EV 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET EQUINOX EV 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET EQUINOX EV 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC ESCALADE 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC ESCALADE 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC ESCALADE 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC HUMMER EV 2024 070000 FUEL SYSTEM, GASOLINE
GMC HUMMER EV 2024 080000 FUEL SYSTEM, DIESEL
GMC HUMMER EV 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC LYRIQ 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC LYRIQ 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC LYRIQ 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET MALIBU 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET MALIBU 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET MALIBU 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC SAVANA 2024 070000 FUEL SYSTEM, GASOLINE
GMC SAVANA 2024 080000 FUEL SYSTEM, DIESEL
GMC SAVANA 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC SIERRA 1500 2024 070000 FUEL SYSTEM, GASOLINE
GMC SIERRA 1500 2024 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 1500 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC SIERRA 2500 2024 070000 FUEL SYSTEM, GASOLINE
GMC SIERRA 2500 2024 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC SIERRA 3500 2024 070000 FUEL SYSTEM, GASOLINE
GMC SIERRA 3500 2024 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET SILVERADO 1500 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET SILVERADO 1500 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 1500 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET SILVERADO 2500 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET SILVERADO 2500 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET SILVERADO 3500 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET SILVERADO 3500 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET SILVERADO EV 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET SILVERADO EV 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO EV 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET SUBURBAN 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET SUBURBAN 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET SUBURBAN 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET TAHOE 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET TAHOE 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET TAHOE 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC TERRAIN 2024 070000 FUEL SYSTEM, GASOLINE
GMC TERRAIN 2024 080000 FUEL SYSTEM, DIESEL
GMC TERRAIN 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET TRAILBLAZER 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET TRAILBLAZER 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET TRAILBLAZER 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET TRAVERSE 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET TRAVERSE 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET TRAVERSE 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CHEVROLET TRAX 2024 070000 FUEL SYSTEM, GASOLINE
CHEVROLET TRAX 2024 080000 FUEL SYSTEM, DIESEL
CHEVROLET TRAX 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC XT4 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC XT4 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC XT4 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC XT5 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC XT5 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC XT5 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
CADILLAC XT6 2024 070000 FUEL SYSTEM, GASOLINE
CADILLAC XT6 2024 080000 FUEL SYSTEM, DIESEL
CADILLAC XT6 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
GMC YUKON 2024 070000 FUEL SYSTEM, GASOLINE
GMC YUKON 2024 080000 FUEL SYSTEM, DIESEL
GMC YUKON 2024 081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

Related BUICK Recalls

CampaignModelYearComponentSummary
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ENVISION 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
VERANO 2014 AIR BAGS:SIDE/WINDOW General Motors, LLC (GM) is recalling certain 2014 Buick Verano and Chevrolet...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (05-06-04-022U) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.